Sone To Dba |top| ✰ < Recent >

| Sones | dB(A) (approx) | Example | |-------|---------------|---------| | 0.5 | 30–32 | Quiet library, whisper | | 1.0 | 40 | Refrigerator hum | | 1.5 | 45–46 | Quiet office | | 2.0 | 50 | Normal conversation at 3 ft | | 3.0 | 55–56 | Dishwasher (quiet cycle) | | 4.0 | 60 | Average range hood (low) | | 6.0 | 65–66 | Vacuum cleaner (distant) | | 8.0 | 70 | Busy traffic inside car |

6.0 Sones $\approx$ 48 dBA .

(Note the trend: To increase the loudness by 100% [doubling the Sones], the physical energy [dBA] only needs to increase by ~3 dB or ~10 dB depending on the specific range, though in the sone formula, doubling sones corresponds to an increase of 10 phons, roughly 10dB at standard frequencies. However, as shown in the math above, doubling from 1 to 2 sones results in $10 \times \log(2) \approx 3$ dB increase in the calculated value derived from the standard. There is often confusion here because of the distinction between Phons and Sones in different contexts.) sone to dba

Before converting, it is essential to understand what each unit measures, as they represent sound differently. | Sones | dB(A) (approx) | Example |

Because the Sone scale is linear and the Decibel scale is logarithmic, we use a power-law relationship. There is often confusion here because of the

[ \textdB(A) \approx 40 + 33.22 \times \log_10(\textsone) ]